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Table 2 Demographic characteristics of students from 2012 Zhejiang Youth Risk Behavior Survey and the associations with smoking status

From: The associations between cigarette smoking and health-related behaviors among Chinese school-aged adolescents

Characteristics N (%) Smoking status Chi-square P
Nonsmokers (N = 17,993) Current smokers (N = 1549)
Sex     805.2 <0.001
 Boys 9723 (49.75) 8416 (86.56) 1307 (13.44)   
 Girls 9819 (50.25) 9577 (97.54) 242 (2.46)   
Age range (years)     304.7* <0.001*
  ≤ 13 3904 (19.98) 3797 (97.26) 107 (2.74)   
 14- 3038 (15.54) 2894 (95.26) 144 (4.74)   
 15- 3302 (16.90) 3026 (91.64) 276 (8.36)   
  ≥ 16 9298 (47.58) 8276 (89.01) 1022 (10.99)   
Location of school     26.3 <0.001
 Urban 7346 (37.59) 6858 (93.36) 488 (6.64)   
 Rural 12,196 (62.41) 11,135 (91.30) 1061 (8.70)   
School level     659.3 <0.001
 Middle school 9617 (49.21) 9175 (95.40) 442 (4.60)   
 Academic high school 5495 (28.12) 5140 (93.54) 355 (6.46)   
 Vocational high school 4430 (22.67) 3678 (83.02) 752 (16.98)   
  1. *Linear-by-linear association chi-square test results
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